1153847940 has 192 divisors, whose sum is σ = 3884751360. Its totient is φ = 250306560.

The previous prime is 1153847917. The next prime is 1153847951. The reversal of 1153847940 is 497483511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1153847892 and 1153847901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 742204 + ... + 743756.

It is an arithmetic number, because the mean of its divisors is an integer number (20233080).

Almost surely, 2^1153847940 is an apocalyptic number.

1153847940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1153847940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1942375680).

1153847940 is an abundant number, since it is smaller than the sum of its proper divisors (2730903420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1153847940 is a wasteful number, since it uses less digits than its factorization.

1153847940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1153847940 is about 33968.3373158004. The cubic root of 1153847940 is about 1048.8567874979.

The spelling of 1153847940 in words is "one billion, one hundred fifty-three million, eight hundred forty-seven thousand, nine hundred forty".